Background Learning Topic Summary       Close
Static Corrections

Estimated Time to Complete:

2 hours

(average of 20 minutes per Subtopic)

Examines how static corrections are applied to seismic data to compensate for near-surface or water-bottom effects. Describes long-wavelength static problems and computation methods, including considerations in choosing a seismic datum and accounting for the geology of the area. Examines deterministic methods for deriving the near-surface velocity model. Discusses short-wavelength static corrections, including cross-correlation methods, surface-consistent methods, genetic algorithms, cross-dip corrections and 3-D statics. Describes layer replacement techniques of ray trace modeling and wave equation datuming.

Expand All
Total Number of Subtopics: 6
  • expand/collapse Basic Concepts
    • Introduction
    • Recording Considerations
    • Static Effects on the Stack
    • Statics in the Overall Processing Flow
    • Interpretive Considerations in Statics
    • Exercise No.1 (Solution)
  • expand/collapse Long Wavelength Statics
    • Introduction
    • Basic Statics Computations
    • Choosing a Seismic Datum
    • Geological Consideration
    • Exercise No.1 (Solution)
    • Exercise No.2 (Solution)
    • Exercise No.3 (Solution)
  • expand/collapse Deterministic Techniques for Deriving the Near Surface Velocity Models
    • Introduction
    • Uphole Surveys
    • Seismic Refraction Theory and Application
    • Refraction Interpretation Methods
    • Tomography Statics
    • Exercise No.1 (Solution)
    • Exercise No.2 (Solution)
  • expand/collapse Short Wavelength Static (Residual Static)
    • Introduction
    • Cross Correlation Methods
    • Surface Consistent Methods
    • Genetic Algorithms
    • Cross-Dip Corrections and 3-D Statics
    • Exercise No.1 (Solution)
    • Exercise No.2 (Solution)
  • expand/collapse Layer Replacement Techniques
    • Introduction
    • The Effects of an Irregular Sea Floor
    • Layer Replacement by Ray - Trace Modeling
    • Wave Equation Datuming
  • expand/collapse Static Corrections: References and Additional Information
    • References
    • Additional Reading
    • Weathered Layer Thickness Calculations
    • Linear Inverse Theory
    • Slope/Intercept Method
    • GLI Method: A Two-Layer Example
(Use the '+' and '-' buttons to expand or collapse each Subtopic Title individually for details.)